A 这种时态由would/should+完成式构成:
肯定式: I would/should have worked
you would have worked等
否定式: I would not/should not have worked等
疑问式: would/should I have worked?等
否定疑问式: should I not have/shouldnt I have worked?
would you not have/wouldnt you have worked?
B 这种形式用于:
(a)条件句中。
(b)would和should的特殊用法中。
(c)过去时中,相当于将来完成时:
I hope he will have finished before we get back.
我希望在我们回来之前他已经做完。
I hoped he would have finished before we got back.
我曾经希望在我们回来之前他已经做完。
【牛津实用英语语法:220 条件完成时】相关文章:
★ 牛津实用英语语法:137 can/am able,could/was able
★ 牛津实用英语语法:85 whoever,whichever,whatever,whenever,
最新
2016-02-29
2016-02-29
2016-02-29
2016-02-29
2016-02-29
2016-02-29